EP2989435A1 - Method and device for testing the tightness of large-volume containers - Google Patents
Method and device for testing the tightness of large-volume containersInfo
- Publication number
- EP2989435A1 EP2989435A1 EP14710191.9A EP14710191A EP2989435A1 EP 2989435 A1 EP2989435 A1 EP 2989435A1 EP 14710191 A EP14710191 A EP 14710191A EP 2989435 A1 EP2989435 A1 EP 2989435A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- test
- valve
- test chamber
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000000523 sample Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 238000005187 foaming Methods 0.000 claims description 5
- 238000002604 ultrasonography Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 235000013405 beer Nutrition 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
- G01M3/10—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for containers, e.g. radiators
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/38—Investigating fluid-tightness of structures by using light
Definitions
- the invention relates to a method according to the preamble of claim 1 and to a device according to the preamble of claim 8.
- the test chamber is first with the negative pressure of a
- a disadvantage of these known methods is, inter alia, that they require a tight conclusion of the test room from the environment, which is not fundamentally guaranteed in practice, for example, due to a malfunction of seals on the probe.
- Also known is a method for pressure testing of filled and sealed with a valve or fitting large-volume or barrel-like containers (DE 10 2008 020 273 A1, DE 93 13 923.3 U1).
- the leak test is carried out in this known method by visually checking the outside of the respective container in the region of its valve or fitting after filling, wherein Deviations of the surface structure and / or surface coloration on the outside of the fitting from predetermined set values by leaked contents or foaming can be used as a criterion for an existing leak. Especially small leaks or leaks, which lead to a loss of pressure in the interior of the container only for a long time, can not or only with difficulty be recognized with these known methods. It is also known to act on the contents in the container with ultrasound during the leak test.
- the object of the invention is to provide a method with which a tightness test of large-volume, filled with a product and closed with a valve or fitting container is possible effectively and reliably. To solve this problem, a method according to claim 1 is formed.
- a device is the subject of claim 8.
- KEG barrel-like containers
- metal KEG metal KEG
- plastic KEG plastic KEG
- PET container interior each by a valve or Fitting is closed, which is attached to the container, especially in plastic KEGs only after filling.
- Large-volume containers are within the meaning of the invention barrel-like containers, which are usually referred to as "KEG” and for example made of metal (metal KEG) or plastic (plastic KEG), for example, PET and their container interior each by a valve or Fitting is closed, which is attached to the container, especially in plastic KEGs only after filling.
- KEG metal KEG
- plastic KEG plastic
- a reliable leakage detection is possible, by a sufficiently high pressure difference between the interior of the respective container and the external environment / volume or test room, in which the at least one sensor element is arranged.
- the test chamber is usually formed by a bell-like test head, for example, for the tightness test on the outside of the container in the region of its valve or in the region of its container sleeve is placed on, and at least when a loading of the test chamber with the negative pressure or vacuum in sealing position on the container.
- the bell-shaped probe 3 is used to test the tightness
- test head 3 is placed on the container 1 such that the container 1 is received at its valve 2 and at its mouth or opening ring 1 .1 sealed in a test room 4 of the test head 3 to the environment.
- the test head 3 has u.a. an annular seal 5, which against the inner surface of the valve 2 and the mouth ring 1 .1 enclosing and the valve 2 also
- Test chamber 4 and the internal pressure of the container 1 generated, for example, by evacuating the test chamber 4 via a with a vacuum device. 6
- the vacuum device consists for example of a Vacuum or vacuum source 6.1 and a control valve 6.2 in the connection to the vacuum port 7.
- the internal pressure of the test chamber 4 is detected and / or monitored with a provided on the test head 3 pressure sensor 8 (pressure transmitter).
- the admission of the test chamber 4 with vacuum is controlled, for example, so that a sufficient pressure difference between the interior of the container 1 and the exckopfraum 4 sets and then the connection to the vacuum source 6.1 is blocked.
- the product to be filled into the container 1 is one which tends to foam, as is the case, for example, with CO2-containing material
- Foaming monitored The criterion for an existing leak is thus primarily the detected with the camera 9 discharge of contents from the container 1 in the test chamber 4 and a corresponding foaming in the test chamber 4. If a Golfgutaustritt and / or a pubic formation is not detected, it means that the container in question 1 and its valve 2 are sealed. With the pressure sensor 8, a pressure drop closing on a leak is also detected, i. if there is a leak, the negative pressure falls in the
- Test chamber 4 from, so that then measured by the pressure sensor 8 pressure increase serves as a further criterion for a leak of the container 1 and / or the valve 2.
- the loading of the test chamber 4 via the vacuum connection 7 with vacuum or negative pressure is preferably timed, i. E. After a predetermined period of time, the test chamber 4 will be separated from the vacuum or
- Vacuum source 6.1 disconnected.
- the pressure then prevailing in the test chamber 4 or its course is detected with the pressure sensor 8.
- the monitoring of leakage is basically by increased pressure differences between the interior of the container and the
- Negative pressure is generated. According to a further embodiment of the
- the test chamber 4 for example, with atmospheric or ambient pressure or in turn applied to vacuum or with negative pressure.
- the external effect on the container 1 or on the contents in this container can be done in a variety of ways, e.g. by a controlled elastic deformation of the wall of the container 1 in the sense of a temporary reduction of the container volume, preferably by mechanical means, whereby the internal pressure of the container 1 increases, or by an energy input into the contents, e.g. by ultrasound, heat, etc., which leads in particular to CO 2 -containing filling products to a leakage of CO 2 gas from the contents and thus an increase in the internal pressure in the container 1.
- the external action on the contents can also be effected by vibration of the container 1, which also leads to CO 2 discharge from the contents and thus to an increase in the internal pressure of the container in question with C02-containing products.
- the actual tightness test is again carried out with the arranged on the container 1 probe 3 by monitoring any leaking into the test chamber 4 contents or a corresponding foam formation with the camera 9. If the test chamber 4 is sealed tight in this embodiment during the leak test to the environment, so can also the pressure measured in the test chamber 4 with the pressure sensor 8 can be used as a further criterion for the presence of a leak.
- each of these methods at the tightness test can also be performed repeatedly, at least twice, repeatedly.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013006943.2A DE102013006943B4 (en) | 2013-04-23 | 2013-04-23 | Method and device for leak testing large-volume containers |
PCT/EP2014/000590 WO2014173479A1 (en) | 2013-04-23 | 2014-03-07 | Method and device for testing the tightness of large-volume containers |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2989435A1 true EP2989435A1 (en) | 2016-03-02 |
EP2989435B1 EP2989435B1 (en) | 2017-08-16 |
Family
ID=50280343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14710191.9A Active EP2989435B1 (en) | 2013-04-23 | 2014-03-07 | Method and device for testing the tightness of large-volume containers |
Country Status (5)
Country | Link |
---|---|
US (1) | US10365179B2 (en) |
EP (1) | EP2989435B1 (en) |
DE (1) | DE102013006943B4 (en) |
RU (1) | RU2634086C2 (en) |
WO (1) | WO2014173479A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019170784A1 (en) | 2018-03-06 | 2019-09-12 | Gasporox Ab | System and method for determining the integrity of containers |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201700097976A1 (en) | 2017-08-31 | 2019-03-03 | Co Mac Srl | Device and method for detecting micro-leaks from drums and similar containers |
CN109827714B (en) * | 2019-04-04 | 2021-05-11 | 宁波保税区凯启精密制造有限公司 | Air tightness detection tool device |
CN111811743A (en) * | 2020-07-27 | 2020-10-23 | 珠海市华林制瓶有限公司 | Water dispenser bucket finished product quality detection device |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3683676A (en) * | 1970-07-27 | 1972-08-15 | Applied Fluidics | Fluidic leak detector |
US3672208A (en) * | 1970-09-25 | 1972-06-27 | Coors Container Co | Testing device for testing edges of cylinders for defects |
US3818752A (en) * | 1971-04-28 | 1974-06-25 | N Lindeberg | Method and apparatus for testing tightness |
DE3813410A1 (en) * | 1988-04-21 | 1989-11-02 | Seitz Enzinger Noll Masch | Method and testing device for detecting leaks in the connection between a treatment head and a keg which is mounted by means of its keg fitting on the said treatment head |
US4899574A (en) * | 1989-02-01 | 1990-02-13 | The Mead Corporation | Method and apparatus for detecting leaks in a sealed container |
GB9002915D0 (en) * | 1990-02-09 | 1990-04-04 | Lambrechts Nv | Apparatus for detecting micro-leakage of gas from pressurised containers |
NL9000641A (en) * | 1990-03-20 | 1991-10-16 | Sara Lee De Nv | METHOD AND APPARATUS FOR EXAMINING A PACKAGING FOR THE PRESENCE OF A LEAK. |
US5546789A (en) * | 1992-08-03 | 1996-08-20 | Intertech Development Company | Leakage detection system |
JPH06258175A (en) * | 1993-03-02 | 1994-09-16 | Hiyuu Burein:Kk | Leakage tester for packing container |
DE9313923U1 (en) * | 1993-09-15 | 1995-01-19 | Ind Und Schiffs Service R Grad | Device for leak testing of drums |
DE19651208C2 (en) * | 1996-12-10 | 1999-05-27 | Boehringer Ingelheim Kg | Method and device for non-destructive leak testing of containers filled with liquid |
US6167751B1 (en) * | 1997-11-26 | 2001-01-02 | Thermedics Detection, Inc. | Leak analysis |
US6962071B2 (en) * | 2001-04-06 | 2005-11-08 | Bracco Research S.A. | Method for improved measurement of local physical parameters in a fluid-filled cavity |
US6666071B1 (en) * | 2002-06-17 | 2003-12-23 | Mccormick John | Method and apparatus for leak testing plastic containers |
US6701776B2 (en) * | 2002-07-12 | 2004-03-09 | Illinois Institute Of Technology | Apparatus and method for leak detection |
US20050160794A1 (en) * | 2004-01-26 | 2005-07-28 | Sonntag Donald W. | Apparatus and method for container leakage testing |
US7266993B2 (en) * | 2004-06-04 | 2007-09-11 | Air Logic Power Systems, Inc. | Container leak detection apparatus and method |
DE102004058606B4 (en) * | 2004-12-03 | 2006-10-05 | Eads Deutschland Gmbh | Method for testing the tightness of containers |
US7752892B2 (en) * | 2006-09-07 | 2010-07-13 | Matheson Tri-Gas | Leak characterization apparatuses and methods for fluid storage containers |
DE102008020273A1 (en) * | 2008-04-22 | 2009-10-29 | Khs Ag | Method and device for leak testing of containers |
DE102008052634A1 (en) | 2008-10-22 | 2010-05-06 | Khs Ag | Non-contact leak testing by means of pulses |
DE102009039875B4 (en) | 2009-09-03 | 2013-05-23 | Khs Gmbh | Method and test device for non-contact leak testing of packaging materials |
-
2013
- 2013-04-23 DE DE102013006943.2A patent/DE102013006943B4/en not_active Expired - Fee Related
-
2014
- 2014-03-07 RU RU2015150031A patent/RU2634086C2/en active
- 2014-03-07 WO PCT/EP2014/000590 patent/WO2014173479A1/en active Application Filing
- 2014-03-07 US US14/785,710 patent/US10365179B2/en not_active Expired - Fee Related
- 2014-03-07 EP EP14710191.9A patent/EP2989435B1/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2014173479A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019170784A1 (en) | 2018-03-06 | 2019-09-12 | Gasporox Ab | System and method for determining the integrity of containers |
Also Published As
Publication number | Publication date |
---|---|
DE102013006943B4 (en) | 2021-03-18 |
EP2989435B1 (en) | 2017-08-16 |
DE102013006943A1 (en) | 2014-10-23 |
US20160069770A1 (en) | 2016-03-10 |
US10365179B2 (en) | 2019-07-30 |
RU2634086C2 (en) | 2017-10-23 |
RU2015150031A (en) | 2017-05-26 |
WO2014173479A1 (en) | 2014-10-30 |
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